watchOS 5.2 (build 16T5222a) is an official Apple over-the-air update for the Apple Watch Series 3 (42mm), released on 2019-03-11T17:11:35Z. The update package is 457.2 MB. This is a delta (partial) update that requires 5.1.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 43936569ed2ac3131e05cfd5d3148c998c2c83b6.zip.